package io;

import java.io.*;

public class CopyDemo3 {
    public static void main(String[] args) throws IOException {
       FileInputStream fis = new FileInputStream("image.png") ;
       BufferedInputStream bis = new BufferedInputStream(fis);
       FileOutputStream fos = new FileOutputStream("image_cp1.png");
       BufferedOutputStream bos = new BufferedOutputStream(fos);
       int d ;
        long start = System.currentTimeMillis();
        while(( d = bis.read()) != -1){
           bos.write(d);
       }
        long end = System.currentTimeMillis();
        System.out.println("复制完毕，耗时：" + (end - start)+ "ms");
        bis.close();
       bos.close();

    }
}
